
.img1 img{
    width: 375rem;
    height: 656rem;
}
.img2 img{
    width: 375rem;
    height: 376rem;
}
.img2{
    margin-top: -2rem;
}

.xiazai-btn{
    width: 341rem;
    height: 50rem;
    border-radius: 25rem;
    margin-left: 17rem;
    text-align: center;
    line-height: 50rem;
    color: aliceblue;
    background-color: rgb(229, 53, 62);
    position: fixed;
    bottom: 20rem;
    left: 0;
    font-size: 24rem;
    font-weight: bolder;
    font-family: "宋体";
}